docker 下载rhel7.6镜像修改yum源

下载镜像

docker pull registry.access.redhat.com/rhel7:7.6

修改yum源

1. 安装wget

1.1 wget下载地址：http://mirrors.163.com/centos/7/os/x86_64/Packages/wget-1.14-18.el7_6.1.x86_64.rpm

2.2 命令：rpm -ivh wget-1.14-18.el7_6.1.x86_64.rpm

2. 下载yum必须的rpm文件

2.1 创建目录

cd /usr/local

mkdir soft

cd soft

#### 2.2 下载rpm文件

wget https://vault.centos.org/7.3.1611/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

wget https://vault.centos.org/7.3.1611/os/x86_64/Packages/python-urlgrabber-3.10-8.el7.noarch.rpm

wget https://vault.centos.org/7.3.1611/os/x86_64/Packages/yum-3.4.3-150.el7.centos.noarch.rpm

wget https://vault.centos.org/7.3.1611/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

wget https://vault.centos.org/7.3.1611/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm

3. 卸载系统自带的yum相关安装

3.1 查看原来是否安装yum： rpm -qa | grep yum

3.2 直接卸载自带的yum： rpm -qa|grep yum|xargs rpm -e --nodeps

3.3 查看是否卸载干净： rpm -qa |grep yum

4. 安装centos源yum

rpm -ivh python-iniparse-0.4-9.el7.noarch.rpm

rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm

rpm -ivh yum-3.4.3-150.el7.centos.noarch.rpm --force --nodeps

rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

rpm -ivh yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm --force --nodeps

5. 设置yum源

5.1 进入/etc/yum.repos.d/目录

5.2 删除目录下的所有文件

5.3 下载yum源

wget http://mirrors.aliyun.com/repo/Centos-7.repo

5.4 打开下载的文件并编辑，将$release 全部替换成7

vi Centos-7.repo 

:%s/$release/7/g

5.5 清楚缓存

yum clean all

5.6 建立缓存

yum makecache